The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus
Abstract Recent studies attributed the accelerating land carbon sink (SLAND) during the 2000s to respiration decrease induced by the warming hiatus. We used two long‐term atmospheric inversions, three temperature data sets, and eight ecosystem models to test this attribution. Our results show that t...
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| Format: | Article |
| Language: | English |
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Wiley
2018-02-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1002/2017GL075808 |
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| _version_ | 1849321305177849856 |
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| author | Zaichun Zhu Shilong Piao Tao Yan Philippe Ciais Ana Bastos Xuanze Zhang Zhaoqi Wang |
| author_facet | Zaichun Zhu Shilong Piao Tao Yan Philippe Ciais Ana Bastos Xuanze Zhang Zhaoqi Wang |
| author_sort | Zaichun Zhu |
| collection | DOAJ |
| description | Abstract Recent studies attributed the accelerating land carbon sink (SLAND) during the 2000s to respiration decrease induced by the warming hiatus. We used two long‐term atmospheric inversions, three temperature data sets, and eight ecosystem models to test this attribution. Our results show that the changes in seasonal SLAND trend between the warming (1982–1998) and hiatus (1998–2014) periods do not track evidently the changes in seasonal temperature trends at both global and regional scales. A conceptual model of the annual/seasonal temperature response of respiration suggests that changes in seasonal temperature during this period are unlikely to cause a significant decrease in annual respiration. The ecosystem models suggest that trends in both gross primary production and terrestrial ecosystem respiration slowed down slightly, but the resulting slight acceleration in net ecosystem productivity is insufficient to explain the increasing trend in SLAND. Instead, the roles of alternative drivers on the accelerating SLAND seem to be important. |
| format | Article |
| id | doaj-art-378a76fcc42e4405a4635921ad8d8ce8 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2018-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-378a76fcc42e4405a4635921ad8d8ce82025-08-20T03:49:46ZengWileyGeophysical Research Letters0094-82761944-80072018-02-014531402140910.1002/2017GL075808The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming HiatusZaichun Zhu0Shilong Piao1Tao Yan2Philippe Ciais3Ana Bastos4Xuanze Zhang5Zhaoqi Wang6Sino‐French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing ChinaSino‐French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing ChinaSino‐French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing ChinaLaboratoire des Sciences du Climat et de l'Environnement LSCE/IPSL, CEA‐CNRS‐UVSQ, Université Paris‐Saclay Gif‐sur‐Yvette FranceLaboratoire des Sciences du Climat et de l'Environnement LSCE/IPSL, CEA‐CNRS‐UVSQ, Université Paris‐Saclay Gif‐sur‐Yvette FranceSino‐French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing ChinaSino‐French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing ChinaAbstract Recent studies attributed the accelerating land carbon sink (SLAND) during the 2000s to respiration decrease induced by the warming hiatus. We used two long‐term atmospheric inversions, three temperature data sets, and eight ecosystem models to test this attribution. Our results show that the changes in seasonal SLAND trend between the warming (1982–1998) and hiatus (1998–2014) periods do not track evidently the changes in seasonal temperature trends at both global and regional scales. A conceptual model of the annual/seasonal temperature response of respiration suggests that changes in seasonal temperature during this period are unlikely to cause a significant decrease in annual respiration. The ecosystem models suggest that trends in both gross primary production and terrestrial ecosystem respiration slowed down slightly, but the resulting slight acceleration in net ecosystem productivity is insufficient to explain the increasing trend in SLAND. Instead, the roles of alternative drivers on the accelerating SLAND seem to be important.https://doi.org/10.1002/2017GL075808warming hiatusland carbon sinkatmospheric inversionsseasonal temperature trend changes |
| spellingShingle | Zaichun Zhu Shilong Piao Tao Yan Philippe Ciais Ana Bastos Xuanze Zhang Zhaoqi Wang The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus Geophysical Research Letters warming hiatus land carbon sink atmospheric inversions seasonal temperature trend changes |
| title | The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus |
| title_full | The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus |
| title_fullStr | The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus |
| title_full_unstemmed | The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus |
| title_short | The Accelerating Land Carbon Sink of the 2000s May Not Be Driven Predominantly by the Warming Hiatus |
| title_sort | accelerating land carbon sink of the 2000s may not be driven predominantly by the warming hiatus |
| topic | warming hiatus land carbon sink atmospheric inversions seasonal temperature trend changes |
| url | https://doi.org/10.1002/2017GL075808 |
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